2. A compound was analyzed and found to have the following percentage composition by mass: Cu: 49.73% P: 16.28% 0: 33.99% Determine the empirical formula of this compound.

Q: Determine the molar mass of NaAlSi3O8. Use the abbreviated form of the unit in your answer and round…

A: Molar mass of  Na :- 23 g/mol  Al :- 27 g/mol  Si :- 28 g/mol  O :- 16 g/mol  These all data are…

Q: Determine the formula weight of NH₄F. Provide an answer to two decimal places.

A: Formula weight can be calculated from the given molecular formula just by adding the atomic mass of…

Q: Calculate the volume in milliliters of a 2.4M potassium iodide solution that contains 50.0 g of…

A: Molarity = 2.4 MMass of solute (KI) = 50.0 gVolume of solution in (mL) = ?

Q: Only typed solution

A: The objective of this question is to determine the number of moles in a given number of formula…

Q: An unknown amount of acetylene gas occupies 12.40 mL. When the amount of this gas is changed to 0.57…

A:

Q: How many moles of solute are in 929mL of 3M HNO3? Answer to 3 decimal places Read about significant…

A:

Q: How should you determine the mass of magnesium in your crucible? 1. Zero the scale 2. Put your…

A: The question is based on the concept of analytical chemistry. we need to identify the correct…

Q: How many moles of water vapor are contained in 4.3 L? O > 1 mole = 1 mole O <1 mole ✓

A: We know, At STP, 1mole =22.4liters using this concept we will solve the problem by proving it.

Q: A 0.4567g sample containing Sodium Chloride and Barium Chloride yielded 0.8910g of dried silver…

A: The addition of a solution of AgNO3 to the sample containing sodium chloride and barium chloride can…

Q: A 73.07 mL sample of 18.1 M sulfuric acid is diluted to 526.6 mL. What is the concentration of this…

A:

Q: Write the formula for calculating concentration, mass, and volume. (Remember that there are three…

A: Concentration is in molarity,Molarity (M) = moles of solute (n)Volume of the solution(V) moles of…

Q: You have a 0.561 M solution of magnesium chloride. You pour out 389.8 mL. of this solution. How many…

A: Given that:  Molarity of Magnesium chloride (MgCl2) = 0.561M  Volume of solution = 389.8ml =…

Q: A compound contains iron and bromine. A sample of the compound contains 6.371 g of iron and 10.991 g…

A:

Q: What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of…

A: Density of a substance is defined as its mass per unit volume.

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: w/w % =( mass of solute(g)/mass of solution(g))*100

Q: I have all the data I just need the Conclusion and the question answers. Data Table 3: Solution…

A: The solubility of NaCl and KNO3 increases with increasing the temperature and NaCl is more soluble…

Q: percent mass

A:

Q: Determine the mass of the water in the sample based on the following data to two decimal places…

A: Determine the mass of water sample in the sample --

Q: Use the equation to answer the questions. Round both answers to nearest whole number. Y = 51.75 1.25…

A: •Given:-    Y = 51.75 - 1.25 X •Here we have to calculate value of X for given values of Y.

Q: How many grams are in 491 mg ? Express your answer numerically in grams. • View Available Hint(s) ?…

A: The unit conversions are performed using equality factor. Here, mg (milli gram) has to be converted…

Q: How many moles of NaOH are in 13.39 mL of 1.38 M NaOH? Do NOT place the answer in scientific…

A:

Q: What is the % mass of oxygen in carbon monoxide?  Report your answer to 1 decimal places

A: Mass of a element of compound is the ratio of mass of element to the total mass mass of compound

Q: Calculate the number of MOLES of sugar in 705.0 mL of a 0.198 M sugar solution.

A: Given -&gt; Volume= 705.0 ml  Molarity= 0.198 M

Q: How is the mass of oxygen measured? Group of answer choices By taking the sum of the potassium…

A:

Q: Select all quantities whose values are exact (contains infinite number of significant figures).…

A: A number that showing perfect exactly value  , it contain infinite number of significant figure.

Q: Please show the proper calculation of the above answer how 17.72% as it creates a lot of confusion…

A: The objective of this question is to show the calculate a percentage, divide the part by the whole…

Q: Determine the number of moles in 247.6g of Cl2? Round to 2 decimal places.

A: Given: Mass of Cl2 =247.6 g The molar mass of Cl2 =70.906 g/mol Number of moles=?

Q: A sample of Cl₂ gas @STP has a volume of 13L. How much does it weigh?

A: Answer: STP means Standard temperature and pressure and that is 273.15K temperature and 1atm…

Q: Percent Water in a Hydrate Data Table #28 White, grainy, crystal, like sugar/ Salt Unknown Number…

A:

Q: None

A: Step 1 :For dilution,moles of solute= M1V1 = M2V2 Step 2:Initial molarity (M1)= 10.1 MInitial volume…

Q: 0.45 mol ethanol Express your answer using two significant figures.

A: A number can be expressed in any number of significant figures depends on the question.

Q: A chemist measures the amount of chlorine gas produced during an experiment. He finds that 11.0 g of…

A: Given,Mass of Chlorine gas = 11.0 gAtomic mass of Cl = 35.45 g/mol.

Q: How many mL of water do you need to add to 171 mL of a 0.42 M solution of acetone in order to create…

A: Initial concentration, M1 = 0.42 M The initial volume of solution, V1 =171 mL Final concentration,…

Q: A scientist wants to make a solution of tribasic sodium phosphate, NazPO4, for a laboratory…

A: Given that,  Volume of Na3PO4 solution, V= 675 mL Concentration of Na+ ions in solution = 1.50 M…

Q: The percent mass of aluminum in Al(CH3COO)3 is.... %?  solve.

A: I have given the answer in the explanation section. Hope you will understand that.

Q: Use the following information to determine the mass of chlorine combined with the magnesium to two…

A: Given, mass of crucible = 35.1  mass of crucible and magnesium = 38.92  mass of crucible and…

Q: How many moles of sodium hydroxide are in 69 mL of 1.1 M sodium hydroxide? Report your answer to one…

A:

Q: Calculate the percent by mass of CH3COOH in vinegar (%). Number answer only, do not write units. Do…

A: To determine the percent by  mass of acetic acid in vinegar, we must first determine the molarity of…

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time…

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not…

Q: A chemist adds 0.85 L of a 0.0632M barium chloride (BaCl, ) solution to a reaction flask. Calculate…

A: Given: The volume of BaCl2, (V) = 0.85 L. The molar concentration of BaCl2, (M) = 0.0632 M. The…

Q: In doing the chemical formula experiment, the mass of original sample of compound was 2.438 g, and…

A: Mass of original sample = Mass of copper in it + Mass of chlorine in it

Q: 9:06am ructions t to click Submit when completed! Question 17 Determine the molarity of a solution…

A: Given: Mass of magnesium iodide (Mgl2) = 861 g Note: (1000 mL = 1L) Volume of a solution = 474 mL =…

Q: Mass of evaporating dish 69.148 Mass of evaporating dish and KCl solution 77.885 Mass of KCl…

A: Given Values: Mass of evaporating dish is 69.148 g Mass of evaporating dish and KCl solution is…

Q: Determine the molar mass of LiNO₃. Provide an answer to two decimal places.

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.